Andrew Lost '1: On the Dog, Paperback

When Andrew s latest invention, the Atom Sucker, goes haywire, Andrew and Judy are shrunk down to microscopic levelAndrew and Judy find themselves lost on their neighbor s dog, where they encounter everything from colossal fleas to crab-like eyelash mites. Now they have to find their way back to the Atom Sucker and get unshrunk before it s too late "